diff options
| -rw-r--r-- | sbin/newfs/newfs.8 | 5 | ||||
| -rw-r--r-- | sbin/tunefs/tunefs.8 | 13 |
2 files changed, 11 insertions, 7 deletions
diff --git a/sbin/newfs/newfs.8 b/sbin/newfs/newfs.8 index d5a2b04c27d..e4460756f09 100644 --- a/sbin/newfs/newfs.8 +++ b/sbin/newfs/newfs.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: newfs.8,v 1.27 2002/02/18 21:57:56 millert Exp $ +.\" $OpenBSD: newfs.8,v 1.28 2002/05/06 19:27:16 millert Exp $ .\" $NetBSD: newfs.8,v 1.12 1995/03/18 14:58:41 cgd Exp $ .\" .\" Copyright (c) 1983, 1987, 1991, 1993, 1994 @@ -156,7 +156,8 @@ This specifies the maximum number of contiguous blocks that will be laid out before forcing a rotational delay (see the .Fl d option). -The default value is 8. +The default value depends on the block size (8 for 8KB blocks and +16 for 4KB blocks). See .Xr tunefs 8 for more details on how to set this option. diff --git a/sbin/tunefs/tunefs.8 b/sbin/tunefs/tunefs.8 index 424aaecf077..48224c49935 100644 --- a/sbin/tunefs/tunefs.8 +++ b/sbin/tunefs/tunefs.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: tunefs.8,v 1.18 2001/12/21 11:41:50 mpech Exp $ +.\" $OpenBSD: tunefs.8,v 1.19 2002/05/06 19:27:16 millert Exp $ .\" $NetBSD: tunefs.8,v 1.8 1995/03/18 15:01:29 cgd Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 @@ -74,10 +74,13 @@ This specifies the maximum number of contiguous blocks that will be laid out before forcing a rotational delay (see .Fl d below). -The default value is one, since most device drivers require -an interrupt per disk transfer. -Device drivers that can chain several buffers together in a single -transfer should set this to the maximum chain length. +The default value depends on the block size (8 for 8KB blocks and +16 for 4KB blocks). +Most device drivers can chain several buffers together in a single transfer. +For optimal performance, the value of +.Ar maxcontig +should be chosen based on the maximum chain length supported by +the device driver. .It Fl d Ar rotdelay This specifies the expected time (in milliseconds) to service a transfer completion |